Find the nearest numbers that are greater and less that your number, in this case, 7 and 8 which square to 49 and 64 and average them by adding them together and dividing by two.
7+8=15
15/2=7.5
7.5 is the nearest estimated square root of 50 that I can get, but the real answer is about 7.071067811865475. (I used a calculator)
1) 2 -7-19
2x=19+7
2x=26
X=13
2) +5=12
-x/3+5=12
-x+15=36
-x=36-15
-x=21
X=-21
3)x-5=4
3x-20=16
3x=16+20
3x=36
X=12
The value is 6 thousandths
Hope this helps!!
Answer:
Step-by-step explanation:
1: 7(4+0)=28
7(4)=28
28=28
this is correct